Summary of Drinking Water Samples Tested by the Penn State Agricultural Analytical Services Laboratory
Union County
8/7/2007 - 6/27/2023, 274 Samples
Test Parameter | Units | Number of Samples Tested | Median | Minimum | Maximum | Number of samples failing EPA Std | Percent of samples failing EPA Std | EPA Drink Water Std |
---|---|---|---|---|---|---|---|---|
Total Coliform |
MPN/100 mL |
267 | 0.0 | 0.0 | 200.5 | 106 | 39.7 | 0 |
E. Coli |
MPN/100 mL |
267 | 0.0 | 0.0 | 200.5 | 20 | 7.5 | 0 |
pH | - |
187 | 7.6 | 4.8 | 8.8 | 11 | 5.9 | 6.5-8.5 |
Total Dissolved Solids |
mg/L | 187 | 209.0 | 20.0 | 2539.0 | 17 | 9.1 | 500 |
Corrosivity Index* |
- |
90 | -0.9 | -4.0 | 0.9 | 58 | 64.4 | - |
Hardness | mg/L | 95 | 85.4 | 0.8 | 1823.6 | - | - | - |
Nitrate+Nitrite N |
mg/L | 116 | 1.5 | 0.2 | 14.7 | 8 | 6.9 | 10 |
Chloride | mg/L | 10 | 5.4 | 1.8 | 116.5 | 0 | 0.0 | 250 |
Sulfate | mg/L | 13 | 22.8 | 3.4 | 386.4 | 1 | 7.7 | 250 |
Aluminum | mg/L | 6 | 0.0 | 0.0 | 0.1 | 1 | 16.7 | 0.05-0.2 |
Arsenic | mg/L | 66 | 0.00 | 0.002 | 0.354 | 3 | 4.5 | 0.01 |
Barium | mg/L | 58 | 0.01 | 0.00 | 0.67 | 0 | 0.0 | 2 |
Cadmium | mg/L | 10 | 0.00 | 0.001 | 0.002 | 0 | 0.0 | 0.005 |
Calcium | mg/L | 88 | 19.27 | 0.25 | 466.48 | - | - | - |
Chromium | mg/L | 10 | 0.0 | 0.002 | 0.005 | 0 | 0.0 | 0.1 |
Copper | mg/L | 100 | 0.01 | 0.01 | 0.29 | 0 | 0.0 | 1.0,1.3 |
Iron | mg/L | 51 | 0.1 | 0.1 | 36.0 | 11 | 21.6 | 0.3 |
Lead-1st draw |
mg/L | 67 | 0.00 | 0.003 | 0.074 | 3 | 4.5 | 0.015 |
Lead-Running | mg/L | 90 | 0.003 | 0.001 | 0.049 | 1 | 1.1 | 0.015 |
Magnesium | mg/L | 88 | 5.72 | 0.05 | 159.98 | - | - | - |
Manganese | mg/L | 51 | 0.01 | 0.01 | 0.63 | 10 | 19.6 | 0.05 |
Mercury | mg/L | 13 | 0.00 | 0.001 | 0.001 | 0 | 0.0 | 0.002 |
Nickel | mg/L | 10 | 0.01 | 0.005 | 0.010 | - | - | - |
Sodium | mg/L | 0 | - | - | - | - | - | - |
Zinc | mg/L | 10 | 0.01 | 0.005 | 0.02 | 0 | 0.0 | 5 |
*For corrosivity index, failure criteria based on less than -0.5 or greater than 0.5
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540
Ag Analytical Services Lab
Hours: Monday-Friday, 8:00 AM - 4:00 PM
- Email aaslab@psu.edu
- Office 814-863-0841
- Fax 814-863-4540